Combined Risk Index Report for Vanuatu

Summary Table

Province Mean Rainfall in Driest Quarter (mm) Median Rainfall in Driest Quarter (mm) Std Dev Rainfall in Driest Quarter (mm) Mean Height above Sea Level (m) Median Height above Sea Level (m) Std Dev Height above Sea Level (m) Mean Height above Drainage Network (m) Median Height above Drainage Network (m) Std Dev Height above Drainage Network (m) High Risk Sites (Rainfall) High Risk Sites (Height above Sea Level) High Risk Sites (Height above Drainage Network)
Sanma 390 400 81 95 28 159 25 11 37 199 (91.0%) 47 (22.0%) 97 (44.0%)
Penama 366 362 27 110 39 126 50 24 56 94 (82.0%) 10 (9.0%) 24 (21.0%)
Malampa 280 269 35 45 19 82 18 13 25 188 (90.0%) 58 (28.0%) 88 (42.0%)
Shefa 341 339 28 41 21 48 23 13 26 179 (97.0%) 46 (25.0%) 70 (38.0%)
Tafea 169 159 56 177 155 133 50 41 45 174 (99.0%) 18 (10.0%) 32 (18.0%)
Torba 682 666 100 41 22 60 29 18 34 29 (44.0%) 12 (18.0%) 22 (33.0%)
None 0 0 0 0 0 0 0 0 0 0 0 0
National 321 323 121 87 30 124 31 16 40 863 (89.0%) 191 (20.0%) 333 (34.0%)

Charts

Mean Rainfall in Driest Quarter by Province
Mean Rainfall in Driest Quarter by Province
Mean Height above Sea Level by Province
Mean Height above Sea Level by Province
Mean Height above Drainage Network by Province
Mean Height above Drainage Network by Province

Combined Risk Index Map

Risk Index Legend

Very High Risk (0.8 - 1.0)

High Risk (0.6 - 0.8)

Moderate Risk (0.4 - 0.6)

Low Risk (0.2 - 0.4)

Very Low Risk (0 - 0.2)

Histograms

Overall Histograms

Overall Histogram of Rainfall in driest quarter
Overall Histogram of Height above sea level
Overall Histogram of Height above drainage network
Overall Histogram of combined_risk_index

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 321 323 121 863 (89.0%)
Height above sea level 87 30 124 191 (20.0%)
Height above drainage network 31 16 40 333 (34.0%)

Histograms for Sanma

Histogram of Rainfall in driest quarter for Sanma
Histogram of Height above sea level for Sanma
Histogram of Height above drainage network for Sanma
Histogram of combined_risk_index for Sanma

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 390 400 81 199 (91.0%)
Height above sea level 95 28 159 47 (22.0%)
Height above drainage network 25 11 37 97 (44.0%)

Histograms for Penama

Histogram of Rainfall in driest quarter for Penama
Histogram of Height above sea level for Penama
Histogram of Height above drainage network for Penama
Histogram of combined_risk_index for Penama

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 366 362 27 94 (82.0%)
Height above sea level 110 39 126 10 (9.0%)
Height above drainage network 50 24 56 24 (21.0%)

Histograms for Malampa

Histogram of Rainfall in driest quarter for Malampa
Histogram of Height above sea level for Malampa
Histogram of Height above drainage network for Malampa
Histogram of combined_risk_index for Malampa

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 280 269 35 188 (90.0%)
Height above sea level 45 19 82 58 (28.0%)
Height above drainage network 18 13 25 88 (42.0%)

Histograms for Shefa

Histogram of Rainfall in driest quarter for Shefa
Histogram of Height above sea level for Shefa
Histogram of Height above drainage network for Shefa
Histogram of combined_risk_index for Shefa

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 341 339 28 179 (97.0%)
Height above sea level 41 21 48 46 (25.0%)
Height above drainage network 23 13 26 70 (38.0%)

Histograms for Tafea

Histogram of Rainfall in driest quarter for Tafea
Histogram of Height above sea level for Tafea
Histogram of Height above drainage network for Tafea
Histogram of combined_risk_index for Tafea

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 169 159 56 174 (99.0%)
Height above sea level 177 155 133 18 (10.0%)
Height above drainage network 50 41 45 32 (18.0%)

Histograms for Torba

Histogram of Rainfall in driest quarter for Torba
Histogram of Height above sea level for Torba
Histogram of Height above drainage network for Torba
Histogram of combined_risk_index for Torba

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 682 666 100 29 (44.0%)
Height above sea level 41 22 60 12 (18.0%)
Height above drainage network 29 18 34 22 (33.0%)

Histograms for None

Histogram of Rainfall in driest quarter for None
Histogram of Height above sea level for None
Histogram of Height above drainage network for None
Histogram of combined_risk_index for None

Descriptive Statistics

Parameter Mean Median Std Dev High Risk Sites
Rainfall in driest quarter 0 0 0 0
Height above sea level 0 0 0 0
Height above drainage network 0 0 0 0

Methodology